与sleep有关的主要neurotransmitter是

Which of the following cell signaling molecules does the neurotransmitter belong to? ( ) A: Chemical signal B: Gas molecules C: Optical signal D: Electric signal

What’s the purpose of the talk A: they might eventually cause you to lose sleep. B: They help produce a neurotransmitter in the brain. C: You must not drink milk if you take them.

Mr Smith had been prescribed a drug to treat his depression. One of the effects of the drug is to maintain elevated levels of a particular neurotransmitter that has been derived from which of the following amino acids?

Neurotrophic effects() A: refer<br/>to the influence of the nerve on the functional activities of the<br/>dominating tissue B: achieved by releasing the neurotransmitter or neuromodulator through<br/>the nerve endings C: rely<br/>on the regular release of neurotrophic factors D: can<br/>be blocked by continuous application of local anesthetics E: It is<br/>not easy to detect, and it can be clearly displayed after cutting off<br/>the nerve